Touch display panel and display device

Abstract

Disclosed are a touch display panel and a display device. The touch display panel includes an array substrate, a light-emitting functional layer, an encapsulating layer and a touch control layer that are sequentially disposed. The touch control layer includes a plurality of touch electrode blocks arranged in an array and further includes a plurality of electrode lines connected to the plurality of touch electrode blocks in one-to-one correspondence. Each touch electrode block is provided with a hollow structure, and each touch electrode blocks is symmetrical at least with respect to a first axis and a second axis that are perpendicular to each other.

The invention claimed is: 
     
       1. A touch display panel, comprising an array substrate, and a light-emitting functional layer, an encapsulating layer and a touch control layer that are sequentially disposed on the array substrate;
 the light-emitting functional layer comprising a plurality of light-emitting units arranged in an array, wherein gap areas are formed between the plurality of light-emitting units, and the touch control layer comprises a plurality of touch electrode blocks arranged in an array and further comprises a plurality of electrode lines connected to the plurality of touch electrode blocks in one-to-one correspondence; 
 the plurality of touch electrode blocks and the plurality of electrode lines located in the gap areas, wherein each of the touch electrode blocks is provided with a hollow structure, and each of the touch electrode blocks is symmetrical at least with respect to a first axis and a second axis that are perpendicular to each other, 
 wherein the hollow structure comprises two sub hollow structures located opposite to each other, the two sub hollow structures are symmetrical with respect to the first axis, and each of the sub hollow structures is symmetrical with respect to the second axis, 
 wherein each of the touch electrode blocks comprises two edges located opposite to each other, the two sub hollow structures and the two edges are arranged in one-to-one correspondence, each of the sub hollow structures comprises a plurality of first sub hollow units arranged at intervals along a corresponding one of the edges, and each of the first sub hollow units is shaped as an isosceles triangle or an isosceles trapezoid such that the touch control electrode has a fishbone shape. 
 
     
     
       2. The touch display panel according to  claim 1 , wherein the plurality of touch electrode blocks are arranged alongside in multiple columns, and at least one of the electrode lines is provided between any two adjacent columns of the touch electrode blocks. 
     
     
       3. The touch display panel according to  claim 1 , wherein a material of the touch electrode blocks and the electrode lines comprises titanium-aluminum alloy or indium tin oxide. 
     
     
       4. The touch display panel according to  claim 1 , wherein the touch control layer further comprises an insulating layer and a passivation layer, the insulating layer is located on the encapsulating layer, the plurality of touch electrode blocks and the plurality of electrode lines are located at a side of the insulating layer away from the encapsulating layer, and the passivation layer covers the insulating layer, the plurality of touch electrode blocks and the plurality of electrode lines. 
     
     
       5. The touch display panel according to  claim 1 , further comprising a substrate, a polarizer and a protective cover plate, the substrate is disposed at a side of the array substrate away from the light-emitting functional layer, the polarizer is disposed at a side of the touch control layer away from the encapsulating layer, and the protective cover plate is disposed at a side of the polarizer away from the touch control layer. 
     
     
       6. A display device, comprising a touch display panel and a control circuit board electrically connected to the touch display panel, the touch display panel, comprising an array substrate, and a light-emitting functional layer, an encapsulating layer and a touch control layer that are sequentially disposed on the array substrate;
 the light-emitting functional layer comprising a plurality of light-emitting units arranged in an array, wherein gap areas are formed between the plurality of light-emitting units, and the touch control layer comprises a plurality of touch electrode blocks arranged in an array and further comprises a plurality of electrode lines connected to the plurality of touch electrode blocks in one-to-one correspondence; 
 the plurality of touch electrode blocks and the plurality of electrode lines located in the gap areas, wherein each of the touch electrode blocks is provided with a hollow structure, and each of the touch electrode blocks is symmetrical at least with respect to a first axis and a second axis that are perpendicular to each other, 
 wherein the hollow structure comprises two sub hollow structures located opposite to each other, the two sub hollow structures are symmetrical with respect to the first axis, and each of the sub hollow structures is symmetrical with respect to the second axis, 
 wherein each of the touch electrode blocks is rectangular, each of the sub hollow structures has a side close to a corresponding edge of the touch electrode block, the side and the edge are arranged in parallel, and each of the sub hollow structures comprises a winding and folding slit. 
 
     
     
       7. The display device according to  claim 6 , wherein the control circuit board is disposed at a rear side of the touch display panel, the control circuit board comprises a touch control chip electrically connected to one end of the plurality of electrode lines away from the touch electrode blocks, configured to determine a touch coordinate by detecting a change of capacitance of each of the touch electrode blocks. 
     
     
       8. The display device according to  claim 6 , wherein the plurality of touch electrode blocks are arranged alongside in multiple columns, and at least one of the electrode lines is provided between any two adjacent columns of the touch electrode blocks. 
     
     
       9. The display device according to  claim 6 , wherein a material of the touch electrode blocks and the electrode lines comprises titanium-aluminum alloy or indium tin oxide. 
     
     
       10. The display device according to  claim 6 , wherein the touch control layer further comprises an insulating layer and a passivation layer, the insulating layer is located on the encapsulating layer, the plurality of touch electrode blocks and the plurality of electrode lines are located at a side of the insulating layer away from the encapsulating layer, and the passivation layer covers the insulating layer, the plurality of touch electrode blocks and the plurality of electrode lines. 
     
     
       11. A touch display panel, comprising an array substrate, and a light-emitting functional layer, an encapsulating layer and a touch control layer that are sequentially disposed on the array substrate;
 the light-emitting functional layer comprising a plurality of light-emitting units arranged in an array, wherein gap areas are formed between the plurality of light-emitting units, and the touch control layer comprises a plurality of touch electrode blocks arranged in an array and further comprises a plurality of electrode lines connected to the plurality of touch electrode blocks in one-to-one correspondence; 
 the plurality of touch electrode blocks and the plurality of electrode lines located in the gap areas, wherein each of the touch electrode blocks is provided with a hollow structure, and each of the touch electrode blocks is symmetrical at least with respect to a first axis and a second axis that are perpendicular to each other, 
 wherein the hollow structure comprises two sub hollow structures located opposite to each other, the two sub hollow structures are symmetrical with respect to the first axis, and each of the sub hollow structures is symmetrical with respect to the second axis, 
 wherein each of the touch electrode blocks is rectangular, each of the sub hollow structures comprises two second sub hollow units that are located on two diagonals of a corresponding touch electrode block, respectively, and are disposed close to a same side of the corresponding touch electrode block, and one end of each of the second sub hollow units extends from a center of the corresponding touch electrode block to a corner or an edge of the touch electrode block. 
 
     
     
       12. The touch display panel according to  claim 11 , wherein each of the sub hollow units is shaped as a straight line, a stair or a wave.